Answer to Question #9993 Submitted to "Ask the Experts"

Category: Radiation Accidents — Fukushima

The following question was answered by an expert in the appropriate field:

Q

I'm a bit concerned over recently imported (used) cars from Japan. Could they be contaminated with radioactivity? Could they pose a serious risk for the occupants? I have heard that only automobile manufacturers tested their cars for radiation. What about used cars?
 

A

The Japanese response to the Fukushima accident is based on the concept of dose. Dose is the amount of radiation actually or potentially received by people. The response is designed to prevent doses above a certain limit. Doses below that limit are small and considered safe. So what would be the dose from cars exported from Japan with radioactive fallout on them? That dose would be small. The fallout on the cars would cause near zero dose to drivers, unless it found its way into food (very unlikely) or into breathing air. The best way to prevent any dose in this situation is to wash the outside of the car and vacuum the inside, removing any fallout. I hope this allays your concerns.

Joel I. Cehn, CHP

Ask the Experts is posting answers using only SI (the International System of Units) in accordance with international practice. To convert these to traditional units we have prepared a conversion table. You can also view a diagram to help put the radiation information presented in this question and answer in perspective. Explanations of radiation terms can be found here.
Answer posted on 17 November 2011. The information posted on this web page is intended as general reference information only. Specific facts and circumstances may affect the applicability of concepts, materials, and information described herein. The information provided is not a substitute for professional advice and should not be relied upon in the absence of such professional advice. To the best of our knowledge, answers are correct at the time they are posted. Be advised that over time, requirements could change, new data could be made available, and Internet links could change, affecting the correctness of the answers. Answers are the professional opinions of the expert responding to each question; they do not necessarily represent the position of the Health Physics Society.